Ajax形式超时

Question

I have a PHP page with form with 100s of fields in it. I'm using Ajax to fetch content to each field upon typing in the data.

Sometimes, it happens that I get this error:

net::ERR_CONNECTION_TIMED_OUT

Presumably because the server fails to respond on time. When that happens, there is an error and Ajax won't work further.

Is there a way I can make the code execute even after the error? So that I can continue trying Ajax again?

Note: I'm using plain old XMLHttpRequest() request, not jquery functions

Answer 1

In your ajax code try to define the timeout settings to 0 (unlimited):

$.ajax({
timeout: 0, //Set your timeout value in milliseconds or 0 for unlimited

You can set this value to 3 seconds (3000) and catch the exception with the error function. Like this:

error: function(jqXHR, textError, errorThrown) {
    if(textError==="timeout") {  
        alert("Call has timed out"); //Handle the timeout
    } else {
        alert("Unknown error"); //Handle other error type
    }

Hope that will help